terraform/command/workspace_command_test.go

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package command
import (
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/internal/backend"
"github.com/hashicorp/terraform/internal/backend/local"
"github.com/hashicorp/terraform/internal/backend/remote-state/inmem"
"github.com/hashicorp/terraform/states"
"github.com/hashicorp/terraform/states/statemgr"
"github.com/mitchellh/cli"
legacy "github.com/hashicorp/terraform/internal/legacy/terraform"
)
func TestWorkspace_createAndChange(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
newCmd := &WorkspaceNewCommand{}
current, _ := newCmd.Workspace()
if current != backend.DefaultStateName {
t.Fatal("current workspace should be 'default'")
}
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args := []string{"test"}
ui := new(cli.MockUi)
view, _ := testView(t)
newCmd.Meta = Meta{Ui: ui, View: view}
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if code := newCmd.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
current, _ = newCmd.Workspace()
if current != "test" {
t.Fatalf("current workspace should be 'test', got %q", current)
}
selCmd := &WorkspaceSelectCommand{}
args = []string{backend.DefaultStateName}
ui = new(cli.MockUi)
selCmd.Meta = Meta{Ui: ui, View: view}
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if code := selCmd.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
current, _ = newCmd.Workspace()
if current != backend.DefaultStateName {
t.Fatal("current workspace should be 'default'")
}
}
// Create some workspaces and test the list output.
// This also ensures we switch to the correct env after each call
func TestWorkspace_createAndList(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// make sure a vars file doesn't interfere
err := ioutil.WriteFile(
DefaultVarsFilename,
[]byte(`foo = "bar"`),
0644,
)
if err != nil {
t.Fatal(err)
}
envs := []string{"test_a", "test_b", "test_c"}
// create multiple workspaces
for _, env := range envs {
ui := new(cli.MockUi)
view, _ := testView(t)
newCmd := &WorkspaceNewCommand{
Meta: Meta{Ui: ui, View: view},
}
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if code := newCmd.Run([]string{env}); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
}
listCmd := &WorkspaceListCommand{}
ui := new(cli.MockUi)
view, _ := testView(t)
listCmd.Meta = Meta{Ui: ui, View: view}
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if code := listCmd.Run(nil); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
actual := strings.TrimSpace(ui.OutputWriter.String())
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expected := "default\n test_a\n test_b\n* test_c"
if actual != expected {
t.Fatalf("\nexpected: %q\nactual: %q", expected, actual)
}
}
// Create some workspaces and test the show output.
func TestWorkspace_createAndShow(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// make sure a vars file doesn't interfere
err := ioutil.WriteFile(
DefaultVarsFilename,
[]byte(`foo = "bar"`),
0644,
)
if err != nil {
t.Fatal(err)
}
// make sure current workspace show outputs "default"
showCmd := &WorkspaceShowCommand{}
ui := new(cli.MockUi)
view, _ := testView(t)
showCmd.Meta = Meta{Ui: ui, View: view}
if code := showCmd.Run(nil); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
actual := strings.TrimSpace(ui.OutputWriter.String())
expected := "default"
if actual != expected {
t.Fatalf("\nexpected: %q\nactual: %q", expected, actual)
}
newCmd := &WorkspaceNewCommand{}
env := []string{"test_a"}
// create test_a workspace
ui = new(cli.MockUi)
newCmd.Meta = Meta{Ui: ui, View: view}
if code := newCmd.Run(env); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
selCmd := &WorkspaceSelectCommand{}
ui = new(cli.MockUi)
selCmd.Meta = Meta{Ui: ui, View: view}
if code := selCmd.Run(env); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
showCmd = &WorkspaceShowCommand{}
ui = new(cli.MockUi)
showCmd.Meta = Meta{Ui: ui, View: view}
if code := showCmd.Run(nil); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
actual = strings.TrimSpace(ui.OutputWriter.String())
expected = "test_a"
if actual != expected {
t.Fatalf("\nexpected: %q\nactual: %q", expected, actual)
}
}
// Don't allow names that aren't URL safe
func TestWorkspace_createInvalid(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
envs := []string{"test_a*", "test_b/foo", "../../../test_c", "好_d"}
// create multiple workspaces
for _, env := range envs {
ui := new(cli.MockUi)
view, _ := testView(t)
newCmd := &WorkspaceNewCommand{
Meta: Meta{Ui: ui, View: view},
}
if code := newCmd.Run([]string{env}); code == 0 {
t.Fatalf("expected failure: \n%s", ui.OutputWriter)
}
}
// list workspaces to make sure none were created
listCmd := &WorkspaceListCommand{}
ui := new(cli.MockUi)
view, _ := testView(t)
listCmd.Meta = Meta{Ui: ui, View: view}
if code := listCmd.Run(nil); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
actual := strings.TrimSpace(ui.OutputWriter.String())
expected := "* default"
if actual != expected {
t.Fatalf("\nexpected: %q\nactual: %q", expected, actual)
}
}
func TestWorkspace_createWithState(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("inmem-backend"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
defer inmem.Reset()
// init the backend
ui := new(cli.MockUi)
view, _ := testView(t)
initCmd := &InitCommand{
Meta: Meta{Ui: ui, View: view},
}
if code := initCmd.Run([]string{}); code != 0 {
t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
}
originalState := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"bar"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
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Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
err := statemgr.NewFilesystem("test.tfstate").WriteState(originalState)
if err != nil {
t.Fatal(err)
}
workspace := "test_workspace"
args := []string{"-state", "test.tfstate", workspace}
ui = new(cli.MockUi)
newCmd := &WorkspaceNewCommand{
Meta: Meta{Ui: ui, View: view},
}
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if code := newCmd.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
newPath := filepath.Join(local.DefaultWorkspaceDir, "test", DefaultStateFilename)
envState := statemgr.NewFilesystem(newPath)
err = envState.RefreshState()
if err != nil {
t.Fatal(err)
}
b := backend.TestBackendConfig(t, inmem.New(), nil)
sMgr, err := b.StateMgr(workspace)
if err != nil {
t.Fatal(err)
}
newState := sMgr.State()
if got, want := newState.String(), originalState.String(); got != want {
t.Fatalf("states not equal\ngot: %s\nwant: %s", got, want)
}
}
func TestWorkspace_delete(t *testing.T) {
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// create the workspace directories
if err := os.MkdirAll(filepath.Join(local.DefaultWorkspaceDir, "test"), 0755); err != nil {
t.Fatal(err)
}
// create the workspace file
if err := os.MkdirAll(DefaultDataDir, 0755); err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile(filepath.Join(DefaultDataDir, local.DefaultWorkspaceFile), []byte("test"), 0644); err != nil {
t.Fatal(err)
}
ui := new(cli.MockUi)
view, _ := testView(t)
delCmd := &WorkspaceDeleteCommand{
Meta: Meta{Ui: ui, View: view},
}
current, _ := delCmd.Workspace()
if current != "test" {
t.Fatal("wrong workspace:", current)
}
// we can't delete our current workspace
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args := []string{"test"}
if code := delCmd.Run(args); code == 0 {
t.Fatal("expected error deleting current workspace")
}
// change back to default
if err := delCmd.SetWorkspace(backend.DefaultStateName); err != nil {
t.Fatal(err)
}
// try the delete again
ui = new(cli.MockUi)
delCmd.Meta.Ui = ui
if code := delCmd.Run(args); code != 0 {
t.Fatalf("error deleting workspace: %s", ui.ErrorWriter)
}
current, _ = delCmd.Workspace()
if current != backend.DefaultStateName {
t.Fatalf("wrong workspace: %q", current)
}
}
func TestWorkspace_deleteInvalid(t *testing.T) {
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// choose an invalid workspace name
workspace := "test workspace"
path := filepath.Join(local.DefaultWorkspaceDir, workspace)
// create the workspace directories
if err := os.MkdirAll(path, 0755); err != nil {
t.Fatal(err)
}
ui := new(cli.MockUi)
view, _ := testView(t)
delCmd := &WorkspaceDeleteCommand{
Meta: Meta{Ui: ui, View: view},
}
// delete the workspace
if code := delCmd.Run([]string{workspace}); code != 0 {
t.Fatalf("error deleting workspace: %s", ui.ErrorWriter)
}
if _, err := os.Stat(path); err == nil {
t.Fatalf("should have deleted workspace, but %s still exists", path)
} else if !os.IsNotExist(err) {
t.Fatalf("unexpected error for workspace path: %s", err)
}
}
func TestWorkspace_deleteWithState(t *testing.T) {
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// create the workspace directories
if err := os.MkdirAll(filepath.Join(local.DefaultWorkspaceDir, "test"), 0755); err != nil {
t.Fatal(err)
}
// create a non-empty state
originalState := &legacy.State{
Modules: []*legacy.ModuleState{
&legacy.ModuleState{
Path: []string{"root"},
Resources: map[string]*legacy.ResourceState{
"test_instance.foo": &legacy.ResourceState{
Type: "test_instance",
Primary: &legacy.InstanceState{
ID: "bar",
},
},
},
},
},
}
f, err := os.Create(filepath.Join(local.DefaultWorkspaceDir, "test", "terraform.tfstate"))
if err != nil {
t.Fatal(err)
}
defer f.Close()
if err := legacy.WriteState(originalState, f); err != nil {
t.Fatal(err)
}
ui := new(cli.MockUi)
view, _ := testView(t)
delCmd := &WorkspaceDeleteCommand{
Meta: Meta{Ui: ui, View: view},
}
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args := []string{"test"}
if code := delCmd.Run(args); code == 0 {
t.Fatalf("expected failure without -force.\noutput: %s", ui.OutputWriter)
}
ui = new(cli.MockUi)
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delCmd.Meta.Ui = ui
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args = []string{"-force", "test"}
if code := delCmd.Run(args); code != 0 {
t.Fatalf("failure: %s", ui.ErrorWriter)
}
if _, err := os.Stat(filepath.Join(local.DefaultWorkspaceDir, "test")); !os.IsNotExist(err) {
t.Fatal("env 'test' still exists!")
}
}